Floor-supporting structure of building

Abstract

A sleeper beam (5) as a supporting member of a floor plate (7) of a floor structure body (Fr) in a floor-supporting structure of a building is installed with a gap (D1) provided between the beam (5) and a floor slab (Sf). Both ends of the beam (5) are arranged with a gap (D2) provided between each end and vertical building-frame walls (2), and the beam (5) is supported by the building-frame walls (2) with elastic bodies in between. A vibration-absorbing device (T) is interposed between the floor slab (Sf) and an intermediate portion of the beam (5). When the beam (5) receives a downward shock load, the vibration-absorbing device (T) prevents the load from being transmitted to the floor slab and minimizes vertical vibration of the beam. This enables, in a building with a concrete building-frame structure, a floor structure body on a floor slab to be supported by vertical building-frame walls of the concrete building frame with the floor structure body isolated from the floor slab. As a result, vibration and noise occur in the floor structure body are scattered and propagated in the vertical building-frame walls to improve noise isolation characteristics. Further, the floor structure body is more stably supported and vertical vibration of the floor structure body can be effectively minimized and damped so that living comfort is enhanced.

Description

technical field [0001] The present invention relates to a floor support structure of a building, in particular to a floor support structure of a building with a concrete frame of a front beam structure connecting floors above the beams. Background technique [0002] Generally, in collective housing such as apartments, the floor structure is fixedly bonded to the floor or frame wall of the concrete frame in a contact state. Therefore, the vibration and impact sound acting on the floor surface becomes solid-borne sound and is transmitted from the floor structure. To the upper and lower floors, and to the left and right adjacent rooms, it becomes vibration noise, which deteriorates the environment of the living space and deteriorates the quality. Especially recently, Japanese-style rooms have decreased due to changes in lifestyle, and the needs of occupants of Western-style rooms have also changed, from carpet floors that function as cushioning materials to pavement floors that...

AI Technical Summary

Problems solved by technology

[0008] However, in the improved technology shown in this Patent Document 2, when the span of the corbel supporting both ends of the vertical frame wall is large, the middle part of the corbel tends to be vertically upward when a downward impact load acts on it. Vibration deformation occurs, especially when the impact load is intermittently repeated, the up and down vibration of the corbel is amplified, causing the occupants on the floor to shake greatly, which may cause discomfort similar to seasickness

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